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Analysis of global ionospheric scintillation and GPS positioning interference triggered by full-halo CME-driven geomagnetic storm: A case study

journal contribution
posted on 2024-06-17, 15:52 authored by Dongsheng Zhao, Shuanglei Cui, Xueli Zhang, Longjiang Li, Peng Sun, Chaofa Bian, Wei Ban, Craig HancockCraig Hancock, Qianxin Wang, Kefei Zhang

Currently, the 25th solar activity peak has commenced, driving frequent geomagnetic storms and causing irregular disturbances in the global ionosphere, leading to the scintillation of Global Positioning System (GPS) signals, consequently decreasing the accuracy of GPS positioning. Analyzing the patterns of global ionospheric scintillation and changes in GPS positioning accuracy caused by geomagnetic storms is crucial to mitigate the adverse effects of GPS positioning. Current research has primarily concentrated on analyzing the effects of geomagnetic storms on ionospheric scintillation disturbances and GPS positioning interference. However, there is a notable gap in studying the holistic impact of coronal mass ejections (CMEs)-driven geomagnetic storms on GPS performance as an integrated event complex. This study investigates the conditions under which a CME drives a severe geomagnetic storm to elucidate the space weather phenomena associated with CME-driven geomagnetic storms. The ionospheric scintillation induced by the geomagnetic storm is analyzed, while we also examine the accuracy variability in kinematic precision point positioning (PPP) and its possible leading reasons. The research findings suggest that factors such as a high-speed full-halo CME, a southward interplanetary magnetic field (IMF) Bz, and high-speed solar wind contribute to the onset of this geomagnetic storm. Ionospheric scintillation and the decrease in positioning accuracy in low-latitude regions are less pronounced compared to mid- and high-latitude areas. Geomagnetic-storm-induced scintillation increases cycle slips, leading to a decrease in PPP accuracy. Even in the cases where geomagnetic storms do not induce ionospheric scintillation, positioning accuracy can still be affected by cycle slips, deterioration of the precision of the GPS measurements, data outages, and the decrease in the number of available satellites. 

Funding

National Natural Science Foundation of China (Nos. 42204016, 42274021, 42361134583)

Natural Science Foundation of Jiangsu Province (No. BK20200664)

State Key Laboratory of Geo-Information Engineering (No. SKLGIE2021-M-2-1)

Key Laboratory of Polar Environment Monitoring and Public Governance (Wuhan University)

Ministry of Education (No. 202305)

Key Laboratory of Geospace Environment and Geodesy, Ministry of Education, Wuhan University (No. 20-01-09)

Fundamental Research Funds for the Central Universities (No. 2020CXNL08)

China Postdoctoral Science Foundation (No. 2023M743762)

National Space Science Data Center (No. NSSDC2302003)

Construction Program of Space-Air-Ground-Well Cooperative Awareness Spatial Information Project (No. B20046)

Independent Innovation Project of “Double-First Class” Construction (No. 2022ZZCX06)

2022 Jiangsu Provincial Science and Technology Initiative-Special Fund for International Science and Technology Cooperation (No. BZ2022018)

State Key Laboratory of Satellite Navigation System and Equipment Technology (No. CEPNT2023B03)

History

School

  • Architecture, Building and Civil Engineering

Published in

Advances in Space Research

Publisher

Elsevier

Version

  • AM (Accepted Manuscript)

Rights holder

© COSPAR

Publisher statement

This paper was accepted for publication in Advances in Space Research published by Elsevier. The final publication is available at https://doi.org/10.1016/j.asr.2024.06.001. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/

Acceptance date

2024-06-01

Publication date

2024-06-05

Copyright date

2024

ISSN

0273-1177

Language

  • en

Depositor

Dr Craig Hancock. Deposit date: 9 June 2024

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